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Evaluation of Alternative Decay Control Products for Control of Postharvest Rhizopus Soft Rot of Sweetpotatoes

B. A. Edmunds and G. J. Holmes

February 2009


Postharvest Rhizopus soft rot of sweetpotato is managed by minimizing injuries incurred during harvesting and packing, curing roots immediately after harvest, and applying fungicide during packing. The United States sweetpotato industry relies heavily on a single fungicide (dicloran) to control Rhizopus soft rot, however, many markets (export, infant food, and organic) no longer allow dicloran residues. Thirty-three products were tested in nine individual experiments over a 5-year period to identify alternative control products.


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